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   <div id="projectname">nRF Gazell
   &#160;<span id="projectnumber">version 0.4.2</span>
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<div class="textblock"><div class="fragment"><pre class="fragment">Release notes nRF51 Gazell v0.4.2
-------------------------------------------------------------------------------

Toolchain used for test / verification:
- ARM: MDK-ARM Version 4.53

On-air compatible with the following SDKs for legacy nRF24Lxx devices:
- nRFgo SDK 2.3.0
- nRFready Desktop 1.2.3

Changes:
- Modified folder structure for board examples
- Xosc is switched of when not needed internally

Release notes nRF51 Gazell v0.4.1
-------------------------------------------------------------------------------

Toolchain used for test / verification:
- ARM: MDK-ARM Version 4.53

On-air compatible with the following SDKs for legacy nRF24Lxx devices:
- nRFgo SDK 2.3.0
- nRFready Desktop 1.2.3

Changes:
- Gazell now supports flushing of RX FIFOs when enabled.
- Improved stability when using various packet lengths.

Release notes nRF51 Gazell v0.4
-------------------------------------------------------------------------------

Toolchains used for test / verification:
- ARM: MDK-ARM Version 4.22a 
- GCC: Sourcery G++ Lite Edition for ARM 2011.03-42 
- IAR: IAR Embedded Workbench for ARM 6.21.1.2846

On-air compatible with the following SDKs for legacy nRF24Lxx devices:
- nRFgo SDK 2.3.0
- nRFready Desktop 1.2.3

Changes:
- Added Gazell Pairing protocol for the nRF51 Gazell Device.
- Desktop emulator example for mouse and keyboard now includes security and 
  pairing using the Gazell Pairing protocol. Compatible 
  on nRF24Lxx devices "out of the box" with Dongle example from the 
  nRFready Desktop.
- Added Gazell Pairing example for an nRF51 Gazell Device. Compatible 
  on nRF24Lxx devices "out of the box" with Gazell Host example from the 
  nRFgo SDK.
- The Gazell Link Layer now supports an improved range of timeslot periods. 
    - Minimum 600us timeslot period, nRF51 Gazell Device to nRF51 Gazell Host.
    - Minimum 500us timeslot period, nRF51 Gazell Device to nRF24Lxx Gazell 
      Host.
    
Known issues:
- The Gazell Link Layer examples are not fully "out of the box" compatible 
  with the legacy Gazell examples provided in the nRFgo SDK for nRF24Lxx
  devices. The timeslot periods and channel tables require adjustment.
  - Timeslot period: Edit gzll_params.h file used in the nRF24Lxx projects,
    or use the nrf_gzll_set_timeslot_period() function in the nRF51 projects
    (nRF51 Gazell timeslot period = 0.5*GZLL_RX_PERIOD).
  - Channel table: Edit gzll_params.h file used in the nRF24Lxx projects, 
    or use the nrf_gzll_set_channel_table() function in the nRF51 projects.
- Does not support "Low Power Host mode" (Host mode 1).


Release notes nRF51 Gazell v0.3
-------------------------------------------------------------------------------

Toolchains used for test / verification:
- ARM: MDK-ARM Version 4.22a 
- GCC: Sourcery G++ Lite Edition for ARM 2011.03-42 
- IAR: IAR Embedded Workbench for ARM 6.21.1.2846

Known issues:

- The Gazell timeslot period can be minimum 1100 us, which would
  correspond to a RX_PERIOD of 2200 us for Legacy nRF24Lxx Gazell 
  provided in the nRFgo SDK.   

- The Gazell examples are not fully "out of the box" compatible with the 
  legacy Gazell examples provided in nRFgo SDK 2.2.1.2748. 
  
  However, these legacy examples can be used with the nRF51 2.4GHz SDK  
  examples if the Gazell RX_PERIOD parameter is set to 2200. In future 
  versions, Gazell will be able to be used with shorter timeslots. 
  
  The default channel tables used in the nRF51 and legacy examples 
  are different. This can be changed in the gzll_params.h file used 
  in the nRF24Lxx projects or by using the nrf_gzll_set_channel_table() 
  function in the nRF51 projects.

- Does not support "Low Power Host mode" (Host mode 1).
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